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Eucidaris
''Eucidaris'' is a genus of cidaroid sea urchins known as slate pencil urchins. They are characterised by a moderately thick test, a usually monocyclic apical disc, perforate and non-crenulate tubercles and nearly straight ambulacra with horizontal pore pairs. The primary spines are few and widely spaced, stout with blunt flat tips and beaded ornamentation and the secondary spines are short and apressed. They originated in the Miocene and extant members of the genus are found in the tropical Indo-Pacific Ocean, East Pacific, Atlantic Ocean and Caribbean Sea. Species The World Register of Marine Species lists the following species: * '' Eucidaris australiae'' Mortensen, 1950 * † '' Eucidaris coralloides'' Fell, 1954 * '' Eucidaris galapagensis'' Döderlein, 1887 * ''Eucidaris metularia'' (Lamarck, 1816) * † '' Eucidaris strobilata'' Fell, 1954 * '' Eucidaris thouarsii'' ( Agassiz & Desor, 1846) * '' Eucidaris tribuloides'' (Lamarck, 1816) ;Species brought into synonymy: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucidaris
''Eucidaris'' is a genus of cidaroid sea urchins known as slate pencil urchins. They are characterised by a moderately thick test, a usually monocyclic apical disc, perforate and non-crenulate tubercles and nearly straight ambulacra with horizontal pore pairs. The primary spines are few and widely spaced, stout with blunt flat tips and beaded ornamentation and the secondary spines are short and apressed. They originated in the Miocene and extant members of the genus are found in the tropical Indo-Pacific Ocean, East Pacific, Atlantic Ocean and Caribbean Sea. Species The World Register of Marine Species lists the following species: * '' Eucidaris australiae'' Mortensen, 1950 * † '' Eucidaris coralloides'' Fell, 1954 * '' Eucidaris galapagensis'' Döderlein, 1887 * ''Eucidaris metularia'' (Lamarck, 1816) * † '' Eucidaris strobilata'' Fell, 1954 * '' Eucidaris thouarsii'' ( Agassiz & Desor, 1846) * '' Eucidaris tribuloides'' (Lamarck, 1816) ;Species brought into synonymy: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucidaris Australiae
''Eucidaris'' is a genus of cidaroid sea urchins known as slate pencil urchins. They are characterised by a moderately thick test, a usually monocyclic apical disc, perforate and non-crenulate tubercles and nearly straight ambulacra with horizontal pore pairs. The primary spines are few and widely spaced, stout with blunt flat tips and beaded ornamentation and the secondary spines are short and apressed. They originated in the Miocene and extant members of the genus are found in the tropical Indo-Pacific Ocean, East Pacific, Atlantic Ocean and Caribbean Sea. Species The World Register of Marine Species lists the following species: * '' Eucidaris australiae'' Mortensen, 1950 * † '' Eucidaris coralloides'' Fell, 1954 * '' Eucidaris galapagensis'' Döderlein, 1887 * ''Eucidaris metularia'' (Lamarck, 1816) * † '' Eucidaris strobilata'' Fell, 1954 * '' Eucidaris thouarsii'' (Agassiz & Desor, 1846) * ''Eucidaris tribuloides'' (Lamarck, 1816) ;Species brought into synonymy: * ''E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucidaris Strobilata
''Eucidaris'' is a genus of cidaroid sea urchins known as slate pencil urchins. They are characterised by a moderately thick test, a usually monocyclic apical disc, perforate and non-crenulate tubercles and nearly straight ambulacra with horizontal pore pairs. The primary spines are few and widely spaced, stout with blunt flat tips and beaded ornamentation and the secondary spines are short and apressed. They originated in the Miocene and extant members of the genus are found in the tropical Indo-Pacific Ocean, East Pacific, Atlantic Ocean and Caribbean Sea. Species The World Register of Marine Species lists the following species: * ''Eucidaris australiae'' Mortensen, 1950 * † '' Eucidaris coralloides'' Fell, 1954 * '' Eucidaris galapagensis'' Döderlein, 1887 * ''Eucidaris metularia'' (Lamarck, 1816) * † '' Eucidaris strobilata'' Fell, 1954 * '' Eucidaris thouarsii'' (Agassiz & Desor, 1846) * ''Eucidaris tribuloides'' (Lamarck, 1816) ;Species brought into synonymy: * ''Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucidaris Coralloides
''Eucidaris'' is a genus of cidaroid sea urchins known as slate pencil urchins. They are characterised by a moderately thick test, a usually monocyclic apical disc, perforate and non-crenulate tubercles and nearly straight ambulacra with horizontal pore pairs. The primary spines are few and widely spaced, stout with blunt flat tips and beaded ornamentation and the secondary spines are short and apressed. They originated in the Miocene and extant members of the genus are found in the tropical Indo-Pacific Ocean, East Pacific, Atlantic Ocean and Caribbean Sea. Species The World Register of Marine Species lists the following species: * ''Eucidaris australiae'' Mortensen, 1950 * † '' Eucidaris coralloides'' Fell, 1954 * '' Eucidaris galapagensis'' Döderlein, 1887 * ''Eucidaris metularia'' (Lamarck, 1816) * † ''Eucidaris strobilata'' Fell, 1954 * '' Eucidaris thouarsii'' (Agassiz & Desor, 1846) * ''Eucidaris tribuloides'' (Lamarck, 1816) ;Species brought into synonymy: * ''Euc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucidaris Metularia
''Eucidaris metularia'', the ten-lined urchin, is a species of sea urchins in the family Cidaridae. It is found in shallow parts of the Indo-Pacific Ocean and is characterised by its sparse covering of banded, flat-tipped spines. Description ''Eucidaris metularia'' is a primitive species of sea urchin and comes from an ancient lineage that has hardly changed over the past 150 million years. The test is robust and somewhat flattened and up to in diameter. The ambulacra are almost straight and have horizontal pairs of pores. The primary spines are few in number, stout with a truncated tip and distinctively banded. The secondary spines surround the primaries and are more numerous, much smaller and flattened. Distribution and habitat ''Eucidaris metularia'' is found in shallow parts of the Indo-Pacific Ocean. Its range includes the Red Sea, East Africa, Madagascar, the Seychelles, Aldabra and Chagos and extends as far east as Fiji, Hawaii, Japan, and northern Australia. It is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucidaris Thouarsii
''Eucidaris thouarsii'', the slate pencil urchin, is a species of cidaroid sea urchins that inhabits littoral regions of the East Pacific Ocean. Distribution and habitat ''Eucidaris thouarsii'' is found in the East Pacific at depths of , ranging from Baja California to Panama, as well as Cocos Island, Clipperton Island and the Galápagos Islands. The Galápagos, Clipperton and Cocos populations are now often recognized as a separate species, '' E. galapagensis'', instead of a subspecies of ''E. thouarsii''. Diet Like all urchins these are primarily herbivores, but feed on a wide range of invertebrates. This species has a high nutrient absorption efficiency when it comes to the coral Pocillopora damicornis ''Pocillopora damicornis'', commonly known as the cauliflower coral or lace coral, is a species of stony coral in the family Pocilloporidae. It is native to tropical and subtropical parts of the Indian and Pacific Oceans. Description ''P. damic ..., but would require a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucidaris Galapagensis
''Eucidaris galapagensis,'' commonly referred to as the slate pencil sea urchin, is a species of echinoderms in the family of Cidaroid. This sea urchin lives in coastal areas in the Galapagos, Clipperton, and Cocos. The preferred substrate of these organisms is rocky, benthic environments that provide refuge.Altieri, A.H. & Witman, J.D. 2014. Modular mobile foundation species as reservoirs of biodiversity. ''Ecosphere.'' 5(10): pp. 1-11 In fact, greater abundance of Slate Pencil Sea Urchins is correlated with correct substrate, as well as greater food availability.Lawrence, J.M. & Sonnenholzner, 2004. Distribution and abundance of asteroids, echinoids, and holothuroids in Galapagos. Echinoderms: Munchen: Proceedings of the 11th International Echinoderm. 11: pp. 239-242 Their diet is primarily herbivorous, however, they also consume various invertebrates. They graze heavily on live corals and algae in open, shallow reef habitats.Glynn, P.W. Wellington, G.M. and Birkeland, C. 197 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucidaris Tribuloides
''Eucidaris tribuloides'', the slate pencil urchin, is a species of cidaroid sea urchins that inhabits littoral regions of the Atlantic Ocean. As a member of the basal clade, basal echinoid order Cidaroida, its morphological, developmental and molecular genetic characteristics make it a phylogenetically interesting species. Taxonomy ''Eucidaris tribuloides'' was first described and classified by Jean Baptiste Lamarck in 1816 as ''Cidarites tribuloides''. The modern classification stems from the echinoid treatises by Pomel in 1883 and by Döderlein in 1887. Distribution and habitat The slate pencil urchin can be found on both sides of the Atlantic, and throughout the Caribbean. On the western side of the Atlantic, the slate pencil urchin has been found as far north as Cape Hatteras, North Carolina, and as far south as Rio de Janeiro. In the Gulf of Mexico, populations have been reported at Scorpion Reef, Alacran Reef, Campeche Bank. On the eastern side of the Atlantic, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cidaridae
Cidaridae is a family of sea urchins in the order Cidaroida. Description and characteristics Cidarid sea urchins are characterized by their stout skeleton : the test is thick and hard, with massive perforated tubercles (never crenulated) surrounded by a crown of secondary tubercles, but no primary tubercles in the interambulacra regions. These tubercles hold massive spines, thick, strong and often very long, and showing sometimes odd shapes (thorny spines, fans, clubs, Christmas trees...). The order Cidaroida is the basalmost of current sea urchins, and most of the species included in this family are abyssal, even if a handful of species remain quite common in tropical shallow waters, like ''Eucidaris'' or ''Phyllacanthus''. Genera According to the World Register of Marine Species (WoRMS), the following genera are included in this family * Subfamily '' Cidarinae'' (Mortensen, 1928a) ** Genus ''Calocidaris'' (H.L. Clark, 1907) ** Genus '' Centrocidaris'' (A. Agassiz, 1904) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Urchin
Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of sea urchins are round and spiny, ranging in diameter from . Sea urchins move slowly, crawling with tube feet, and also propel themselves with their spines. Although algae are the primary diet, sea urchins also eat slow-moving (sessile) animals. Predators that eat sea urchins include a wide variety of fish, starfish, crabs, marine mammals. Sea urchins are also used as food especially in Japan. Adult sea urchins have fivefold symmetry, but their pluteus larvae feature bilateral (mirror) symmetry, indicating that the sea urchin belongs to the Bilateria group of animal phyla, which also comprises the chordates and the arthropods, the annelids and the molluscs, and are found in every ocean and in every climate, from the tropics to the pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cidaroida
Cidaroida is an order of primitive sea urchins, the only living order of the subclass Perischoechinoidea. All other orders of this subclass, which were even more primitive than the living forms, became extinct during the Mesozoic. Description Their primary spines are much more widely separated than in other sea urchins, and they have no buccal slits. Other primitive features include relatively simple plates in the test, and the ambulacral plates continuing as a series across the membrane that surrounds the mouth. Families According to World Register of Marine Species: * family Anisocidaridae Vadet, 1999 † * super-family Cidaridea Gray, 1825 ** family Cidaridae Gray, 1825 ** family Ctenocidaridae Mortensen, 1928a ** family Paurocidaridae Vadet, 1999a † * family Diplocidaridae Gregory, 1900 † * family Heterocidaridae Mortensen, 1934 † * super-family Histocidaroidea Lambert, 1900 ** family Histocidaridae Lambert, 1900 ** family Psychocidaridae Ikeda, 1936 * famil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auguste Pomel
Nicolas Auguste Pomel (20 September 1821 – 2 August 1898) was a French geologist, paleontologist and botanist. He worked as a mines engineer in Algeria and became a specialist in north African vertebrate fossils. He was Senator of Algeria for Oran from 1876 to 1882. Life Nicolas-Auguste Pomel was born in Issoire, Puy-de-Dôme, on 20 September 1821. He studied at the Lycée de Clermont and earned his Licence ès sciences. He was conscripted into the army when he was prepared to enter the École des mines. He became a civil engineer after being released. After the coup d'état of 2 December 1851 his Republican beliefs earned him deportation. He became a ''Garde des mines'' in Oran in 1866, and was promoted to the 1st class in 1872. From 1876 to 1882 he was member of the Senate (Oran division). In 1882 he was tasked with geological mapping of Algeria. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
